CVE-2003-0032: Mcrypt Libmcrypt

Medium severity, CVSS 5.0. EPSS: 1.5% chance of exploitation in the next 30 days.

Memory leak in libmcrypt before 2.5.5 allows attackers to cause a denial of service (memory exhaustion) via a large number of requests to the application, which causes libmcrypt to dynamically load algorithms via libtool.

Affected products

• Mcrypt Libmcrypt: version 2.5.1_r4 only; version 2.5.2 only; version 2.5.3 only; version 2.5_.0 only

Published 2003-01-17. Last modified 2026-06-16.